The Blue Line (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

The Blue Line is a French documentary directed by Marie Dumora that examines what remains of the Natzweiler Struthof concentration camp in Alsace. Through testimony from the last remaining witnesses and attention to the landscape, the film connects personal memory with fragments of resistance and the history held by the Bruche valley.

The Blue Line is a 2026 French documentary directed by Marie Dumora. Set around what remains of the Natzweiler Struthof concentration camp in Alsace, it focuses on testimony, place and the persistence of historical memory.

The film gives particular attention to the last remaining witnesses, whose accounts help bring overlooked fragments of resistance into view. Its approach links the physical landscape of the Bruche valley with the memories attached to it.

The Blue Line movie details

Story without spoilers

The documentary asks what can still be found in the remains of the Natzweiler Struthof concentration camp, established by the Nazis in Alsace’s Bruche valley. Rather than presenting the site only as a historical location, The Blue Line considers how its topography and surviving traces interact with personal testimony.

The last remaining witnesses share their stories, creating a connection between lived memory and the places where events unfolded. The film’s focus on “memory mapping” brings fragments of resistance back to light without revealing the full progression of its accounts.

What to expect

As a documentary, The Blue Line is centered on historical testimony and the relationship between memory and landscape. Its subject matter is the former Natzweiler Struthof concentration camp and the stories of those who remain to bear witness.

Viewers can expect a reflective examination of place, remembrance and resistance, with the Bruche valley serving as an important geographical context. The film’s 2-hour-4-minute runtime allows space for its documentary approach to unfold at length.

Cast and creative team

The Blue Line is directed by Marie Dumora. No cast or writers are listed in the supplied information; the documentary is built around testimony from the last remaining witnesses connected to its subject.

Release and production context

The Blue Line is a French production in the documentary genre, spoken in French. It has a listed release date of September 16, 2026, and a runtime of 2 hours and 4 minutes. The film is marked as released in the supplied metadata.

Movies Dock view

The Blue Line approaches the history of Natzweiler Struthof through the connection between surviving testimony and the landscape of Alsace’s Bruche valley. For viewers interested in documentary accounts of memory and historical resistance, its focus is clearly defined and grounded in the voices of witnesses and the traces of the site.

Film data:
TMDB · IMDb